Method for implementing full digital wireless communication system using fast Fourier transform

A technology of wireless communication system and Fourier transform, which is applied in the field of realizing all-digital wireless communication system by using fast Fourier transform, which can solve the problem of increasing the complexity, cost and power consumption of the system, affecting the flexibility of the spectrum used by the system, and the central frequency cannot be arbitrarily Changes and other issues to achieve the effect of convenient adaptive spectrum shifting, avoiding noise and phase imbalance, and reducing the amount of calculation
CN1606298AInactive Publication Date: 2005-04-13南京市物联网与集成电路设计产业创新中心有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
南京市物联网与集成电路设计产业创新中心有限公司
Publication Date
2005-04-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for realizing total digital wireless communication system utilizing quick Fourier conversion is that at the emit end, the transmitted data is in the structure of burst based on packets to form a symbol stream used in transmission by channel encoding, channel interlace and symbol image device and to turn the serial into the parallel as the input of orthogonal modulator which caries out P times orthogonal modulation to each set N point input symbol sequence in the following steps: carrying out frequency domain phase rotation to the input N points symbol sequence, quickly inverting the Fourier conversion then to rotate the time domain phase, regulate the sequence via parallel / serial conversion, adding circulation prefix and modules converter to be emitted, at the receive end, signals received by the antenna are turned to output data by modules conversion, serial / parallel conversion and phase rotation N points quick Fourier conversion, channel estimation frequency balance, parallel / serial conversion, symbol inversed image channel de-interlace and channel decode.
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Description

technical field

[0001] The present invention is a solution applied to medium and high-speed wireless communication systems to realize the physical layer of all-digital broadband, ultra-wideband medium and high-speed wireless communications, and in particular relates to a method for realizing a full-digital wireless communication system by using fast Fourier transform. Background technique

[0002] Ultra-Wideband (UWB) technology is a revolutionary new technology in the field of wireless communication. UWB technology is characterized by using an extremely wide frequency band for communication, and can achieve a wireless transmission rate of more than 1000 Mbit / s. In order not to cause interference to other communication systems in the frequency band, the transmission power of the UWB system is strictly limited. Therefore, the current high-speed UWB communication distance is generally within 10 meters.

[0003] At present, there are two basic impleme...

Claims

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